body {
  background: #f4f7fd;
}
.clear::after {
  content: '';
  display: block;
  clear: both;
}
body,
html {
  height: 100%;
}
.wrapper {
  height: 100%;
}
.videoWarp {
  height: 8.4rem;
  background: #191919;
  position: relative;
}
.videoWarp .videoBox {
  transform-origin: left bottom;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 99;
}
.videoWarp video {
  height: 8.4rem;
  width: 100%;
  transform-origin: left bottom;
  position: absolute;
  left: 0rem;
  top: 0;
  z-index: 99;
}
.videoWarp canvas {
  transform-origin: left bottom;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 99;
}
.videoWarp .prompt {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.68rem;
  color: #fff;
  height: 1.2rem;
  line-height: 0.7rem;
  background: url(../img/time.png) no-repeat;
  padding-left: 1.2rem;
  box-sizing: border-box;
  width: 9.4rem;
  display: none;
}
.videoWarp .prompt span {
  color: #4285f4;
  font-size: 0.96rem;
}
.videoWarp .play {
  position: absolute;
  background: url(../img/video_play.png) no-repeat;
  height: 2.4rem;
  width: 2.4rem;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background-size: 2.4rem 2.4rem;
  z-index: 999;
}
.videoWarp .full {
  position: absolute;
  background: url(../img/full.png) no-repeat center center;
  background-size: 0.72rem 0.76rem;
  width: 1rem;
  height: 1rem;
  right: 0.6rem;
  bottom: 0.4rem;
  z-index: 999;
}
.teacher_warp {
  padding: 0.6rem 0.6rem 0.8rem;
  background: #fff;
  box-shadow: 0rem 0.1rem 0.5rem 0rem rgba(96, 143, 221, 0.2);
}
.teacher_warp .title {
  font-size: 0.6rem;
  position: relative;
  padding-left: 0.4rem;
  line-height: 0.72rem;
}
.teacher_warp .title::before {
  position: absolute;
  height: 0.72rem;
  width: 0.12rem;
  background: #4285f4;
  content: '';
  left: 0;
  top: 0;
}
.teacher_warp .teacher {
  margin-top: 0.6rem;
}
.teacher_warp .tx {
  height: 2.6rem;
  width: 2.6rem;
  background: #4285f4;
  margin-right: 0.4rem;
  float: left;
  border-radius: 50%;
  overflow: hidden;
}
.teacher_warp .tx img {
  border-radius: 50%;
}
.teacher_warp .name {
  padding-top: 0.3rem;
  color: #424242;
  float: left;
  width: 7.76rem;
}
.teacher_warp .name h4 {
  font-weight: normal;
  font-size: 0.52rem;
  display: block;
  line-height: 0.9rem;
}
.teacher_warp .name span {
  width: 7.76rem;
  font-size: 0.52rem;
  display: block;
  line-height: 0.9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.teacher_warp .guanzhu {
  float: right;
  width: 2.6rem;
  height: 1.12rem;
  border: 0.04rem solid #4285f4;
  border-radius: 0.16rem;
  line-height: 1.12rem;
  text-align: center;
  font-size: 0.6rem;
  color: #4285f4;
  margin-top: 0.74rem;
}
.nav {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  font-size: 0.6rem;
  padding: 0 0.6rem;
  background: #fff;
  height: 2.4rem;
  line-height: 2.4rem;
  position: relative;
  box-shadow: 0rem 0.1rem 0.5rem 0rem rgba(96, 143, 221, 0.2);
  margin: 0.4rem 0;
}
.nav .active {
  color: #4285f4;
  position: relative;
}
.nav .active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0.36rem;
  background: #4285f4;
  width: 2.52rem;
  height: 0.08rem;
}
.class_content {
  min-height: 9.7rem;
  background: #fff;
  padding: 0 0.6rem;
  color: #424242;
}
.class_content .title {
  line-height: 1.8rem;
  font-size: 0.6rem;
}
.class_content li {
  color: #808080;
  font-size: 0.52rem;
}
.class_content li span {
  display: block;
  line-height: 0.94rem;
  float: left;
  margin-right: 0.36rem;
}
.class_content li p {
  width: 11.6rem;
  float: left;
  line-height: 0.94rem;
}
.class_content li:after {
  content: '';
  display: block;
  clear: both;
}
.class_list {
  background: #fff;
  padding-bottom: 3.88rem;
  display: none;
}
.class_list ul {
  box-shadow: 0rem 0.1rem 0.5rem 0rem rgba(96, 143, 221, 0.2);
}
.class_list li {
  padding: 0.6rem;
  position: relative;
  border-bottom: 0.04rem solid #dedede;
}
.class_list li p {
  color: #424242;
  font-size: 0.6rem;
  line-height: 1.08rem;
  width: 90%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.class_list li .small_icon {
  display: block;
  line-height: 0.74rem;
  font-size: 0.44rem;
  color: #808080;
}
.class_list li time {
  background: url(../img/zhibo_bo.png) no-repeat left center;
  background-size: 0.4rem 0.4rem;
}
.class_list li span {
  background: url(../img/zhibo_ren.png) no-repeat left center;
  background-size: 0.4rem 0.4rem;
}
.class_list li span,
.class_list li time {
  margin-right: 1.06rem;
  padding-left: 0.7rem;
  font-size: 0.44rem;
}
.class_list li:last-child {
  border: none;
}
.class_list .active p {
  color: #4285f4;
}
.class_list .active .startPlay {
  background: url(../img/yes.png) no-repeat;
  background-size: 0.8rem 0.8rem;
}
.class_list .startPlay {
  height: 0.8rem;
  width: 0.8rem;
  border-radius: 50%;
  background: url(../img/no.png) no-repeat;
  background-size: 0.8rem 0.8rem;
  position: absolute;
  right: 0.6rem;
  top: 50%;
  transform: translateY(-50%);
}
.class_notice {
  display: none;
}
.class_notice .title {
  line-height: 1.76rem;
  font-size: 0.6rem;
  color: #424242;
}
.class_notice .notice {
  margin-bottom: 0.4rem;
  box-shadow: 0rem 0.1rem 0.5rem 0rem rgba(96, 143, 221, 0.2);
  padding: 0 0.6rem 0.8rem;
  background: #fff;
}
.class_notice .notice p {
  line-height: 0.9rem;
  color: #808080;
  font-size: 0.52rem;
  margin-bottom: 1rem;
}
.class_notice .notice .saoma .imgWarp {
  height: 4rem;
  width: 4rem;
  background: #4285f4;
  margin: 0 auto;
}
.class_notice .notice .saoma span {
  font-size: 0.56rem;
  color: #424242;
  text-align: center;
  display: block;
  margin-top: 0.8rem;
}
.class_notice .xuzhi {
  background: #fff;
  padding: 0 0.6rem 2rem;
}
.class_notice .xuzhi li {
  color: #808080;
  font-size: 0.52rem;
}
.class_notice .xuzhi li span {
  display: block;
  line-height: 0.94rem;
  float: left;
  margin-right: 0.36rem;
}
.class_notice .xuzhi li p {
  width: 11.6rem;
  float: left;
  line-height: 0.94rem;
}
.class_notice .xuzhi li:after {
  content: '';
  display: block;
  clear: both;
}
